The pattern of locomotion used by gibbons and siamangs, where they use their arms to hang below
branches and swing forward, is called
a. bipedal movement.
b. peristalsis.
c. gliding.
d. brachiation.
e. orthokinesis.
D
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The KN-1 gene in maize is normally expressed
a. in primary meristems, where it initiates the process of differentiation. b. in apical meristems, where it maintains the undifferentiated state. c. in apical meristems, where it initiates the process of differentiation. d. in primary meristems, where it maintains the undifferentiated state. e. in lateral meristems, where it initiates the process of secondary growth.
Darwin concluded from his observations of nature and readings that
A. species do not change over time. B. individuals compete with one another for limited resources and only the fittest survive and reproduce. C. individuals compete with one another for limited resources and only the fittest survive. D. an individual's likelihood of survival and reproduction are mostly due to chance and changes in the environment. E. population growth is unlimited, leading to the large numbers of organisms.
To make a vaccine against mumps, measles, or rabies, which type of viruses would be useful?
A) dsDNA viruses B) negative-sense ssRNA viruses C) positive-sense ssRNA viruses D) dsRNA viruses
A male patient at a medical clinic presents with infertility due to nonmotile sperm and an inability to clear mucous from his respiratory tract. Other tissues are normal. You suspect that these symptoms may be caused by mutant
a. tubulin. b. kinesin. c. dynein. d. tau protein. e. MAP 1.